Brake



6. V. ROTE.

BRAKE.

APPLICATION FILED APB- 26.1920.

' Patented J ne 21,1921.

3 SHEETS-SHEET 1.

aw l 61mm C. V. ROTE.

BRAKE.

APPLICATION FILED APR.26. 1920.

L .92 4 .mm. I E uww d3 m m a D WITNESS C. V. ROTE.

BRAKE. APPLICATION FILED A P'R.26, 1920.

82 51 j Patented June 21,1921;

3 SHEETS-SHE 3.

r I 2 9mm UNITED STATES PATENT OFFICE.

CHARLES V. RO'IE, 0F LANCASTER, PENNSYLVANIA, 'ASS IGNOP, 0F ONE-HALF TOE. W.

BROWN, OIE LANCASTER, PENNSYLVANIA BRAKE.

Application filed April 25, 1920.

To all wh am it may concern:

Be it known that I, CHARLES V. Born, a citizen of the United States,residing at Lancaster, in the county of Lancaster and State ofPennsylvania, have invented new and useful Improvements in Brakes, ofwhich the following is a specification.

The present invention relates to improvements in brakes, particularly ofthe character employed for railway cars and of the type in which theshoe or braking surface is removably connected with the head or body ofthe brake.

One of the objects of the invention is to provide a brake in which theshoe and head may be separated, by a lateral sliding movement of theshoe so that it will not be necessary to disconnect the brake from itssupporting means or move it to a relatively great distance from thewheel on which it is intended to act to effect such separation.

Another object of the invention is to provide a brake of the characterreferred to in which the shoe and brake head are directly connected by akey in such manner that even if the shoe is worn completely throughthere is no danger of the separated portions thereof becomingaccidentally detached and fall ing to the ground.

A further object of the invention is to provide means by which thestandard M. C. B. brake head may be readily equipped with meanspermitting the brake shoe to be applied by a lateral sliding movement.With the regular or standard M. C. B. design of head and shoe the lattercan only be sep arated from the head by a forward move ment, or movementaway from the head and toward the wheel with which the brake coacts and,therefore, it is necessary to effect a considerable separation of thewheel and brake before a shoe can be removed or replaced. By the presentinvention, however, an adapter is provided which can be readily attachedto a head of M. C. B. design and which will provide for the positioningor removal of a shoe by a simple lateral sliding movement.

The foregoing and other objects of the invention are accomplished by theconstruction illustrated in the accompanying drawings, in which:

Specification of Letters Patent.

.key, iereinafter referred to.

Patented June 21, 1921.

Serial No. 376,581.

Fig. 2 is a face view, with the shoe removed;

Fig. 3 is an elevation of the opposite side of the brake from that shownin Fig. 1;

Fig. 4 is a rear elevation of the shoe;

Fig. 5 is a sectional view on the line 55 of Fig. 1;

Fig. 6 is an elevation of another embodiment of the invention;

Fig. 7 is a face View of the part shown in Fig. 6 with the shoe removed.

Referring to the drawings, and particularly to Figs. 1 to 5, inclusive,1 designates the head or body of the improved brake which, as shown, isof the standard M. C. B. design. In this type or form of head theforward surface thereof is provided with'a plurality of forwardlyextending lugs or projections. The intermediate projections 2 3, extendtransversely across the face of the head and are provided with suitableopenings 4, to receive a looking or securing The end or terminalprojections on the face of the head are each divided into two sections5, 5 by longitudinally extending slot or groove 6, and the shoe commonlyemployed with such a head is provided with lugs adapted to fit withinsaid grooves 6, as well as with a lug or lugs that extend transverselyof the head in the spaces between the lugs or projections 2, 3, and theterminal lugs on the head. Therefore, in order to separate a shoe fromits head, or to position a new shoe on a head, it,

is necessary to move the shoe forwardly from the head to enable the endlugs thereon to clear the terminal lugs 5, 5 This necessitates movingthe brake to a considerab e distance from the wheel and adjustment ofthe brake supporting devices .is necessary which consumes considerabletime.

In the embodiment of the invention illustrated in Figs. 1 to 5,inclusive, the brake head 1 is provided with;an adapter which comprisesa metal frame including side members 7, 8, end members 9, 10, andintermediate transverse cross pieces or sections 11, 12. Said sectionsof the adapter are all preferably formed integral and it will be seenthat the members 7, 8, 11 and 12 thereof, fit about the intermediatelugs 2, 3, on the brake head, while the end members 9, 10, lie adjacentthe terminal lugs 5, 5 of the head. Each of said cross members 9, 12,11, 10 of the adapter is provided in its rear face with a notch, or anaperture is formed therethrough, to receive the locking key by whichforwardly from the plane of the forward face of the brake head andportions 14, 15, thereof over-lie said surface of the head and serve asabutments to limit lateral sliding movement of the brake shoe in onedirection. The other side member 8, of the adapter is so shaped that theportions thereof between the cross members 9, 12,-12, 11,and 11, 10, aresubstantially flush with or slightly in rear of the plane of the forwardsurface of the head so that the adapter provides a plurality of socketsextending transversely of the head and open at the outer side thereofinto which the lugs on a brake shoe may be freely introduced by alateral sliding movemcnt of the shoe. The inner ends of the socketsadjacent the ends of the brake head are closed or partially so by theaforesaid abutments 1 1, 15. i

v Owing to the position in which the brake head stands and the manner inwhich the adapter is interfitted therewith, there is little possibilityof said parts being accidentally displaced even if the shoe, hereinafterreferred to, is removed. However, to in sure that the adapter will notbe accidentally disconnected from the brake head a suitable tie rod maybe passed through apertures formed in lugs 16, 17, and the intermediateweb of the brake head, suitable securing means, such as cotter pinsbeing provided to retain the rod in position.

The shoe 20, of the brake is provided on its rear face with a pluralityof lugs 21, 22, 23, adapted to severally fit fairly closely within thesockets formed by the members of the adapter when applied to the brakehead and which are arranged between the lugs on the brake head. As shownin at, these lugs do not extend continuously across the rear face of theshoe but each is composed of two sections connected by a member 24,which provides a passage adapted to aline with the grooves 6, at theends of the brake head and the passages in th intermediate lugs on thehead and through the transverse members of the adapter so that when theshoe is in position on the head, a key 25, may

be passed longitudinally therethrough to se-' cure the several partstogether. It will be seen that this key engages directly with the shoethe adapter and the brake head and the several members on these partswith which the key engages are so closely related that even if theshoe'is broken transversely, the sections thereof will not be permittedto fall or become detached from the head.

It will be seen that the adapter may be readily applied to the ordinarystandard hi. C. 13. brake head and that when in position a shoe of thecharacter shown can be easily positioned on the head or withdrawntherefrom by a lateral sliding movement so that it is unnecessary towithdraw the brake to any considerable distance from the car wheel toremove or replace a worn shoe. It is merely necessary to remove the key25, after which the shoe can be drawn directly from the head by asidew'ise movement.

The side wall or member 8, of the adapter is preferably provided with alaterally detlected substantially horizontal portion '8, opposite thecentral socket or portion, and this is intended to serve as a fulcrumfor a short lever or bar which may be introduced beneath the member 2 ofthe central lug on the shoe to overcome any wedging action that mayinterfere with the free lateral sliding movement of the shoe.

While one of the principal objects of the invention, as hereinbeforestated, is to provide means by which the standardM. C. B. design ofbrake head'may be adapted to have a shoe positioned thereon or removedtherefrom by a lateral sliding movement only it will be evident thatsome of the objects of the present invention may be attained if theadapter is an integral part of the brake head. Such a construction isillustrated in Figs. 6 and 7 in which the head 1 is provided on itsforward face with lugs 30, 31, 32, 33. Between the lugs 30, 31, and 32,33 are, respectively, formed abutments 35, 36, which 100 serve to limitlateral sliding movement of the lugs 21, 23, on the brake shoe 20. As

shown, the terminal or end lugs 30, 33, are provided with longitudinalgrooves '37, so that if desired, a shoe of the form commonly employedwith the standard M. C. B. design head may be used.

it will be seen thatby the invention the shoe may be reversed in case ithas become unduly worn.

it is thought that the manner of using and the importance of theinvention will be understood from the foregoing description taken inconnection with the drawings.

Vi hile the drawings illustrate and the 115 foregoing description refersparticularly to embodiments of the invention which are, at

present, considered the preferred forms, t

provided with spaced projections on its rear face adapted to enter thespaces between the projections on the face of the head and to permit theshoe to be bodily moved laterally to and from engagement with the head,such lateral engaging movement being limited by said abutments, and aremovable key extending through the projections on the head and shoe andnormally preventing separation thereof.

2. A brake comprising a head adapted to be connected to a suitable beamand provided on its forward face with a plurality of spaced, forwardlyextending, projections, each having an aperture therein, a shoe providedon its rear face with a plurality of apertured projections spacedlongitudinally of the shoe to interengage with the projections on thehead, whereby the shoe may be applied to or removed bodily from the headby a lateral sliding movement, means on the head for limiting suchlateral movement of the shoe in one direction and causing the apertureson the projections thereon to aline with the apertures in theprojections on the head, and a removable key inserted in the aperturesin said projections to connect the head and shoe.

3. A brake comprising a head adapted to be connected to a suitable beamand provided on its forward face with a plurality of apertured lugs and'at one side, between two of said lugs, with a laterally projectingfulcrurn surface, a shoe having on its rear face a plurality ofapertured lugs spaced to cor respond to the spaces between the lugs onthe head, whereby the shoe may be moved into and from en agement withthe head by a lateral sliding movement only, abutments on the headcooperating with some f the lugs on the shoe for limiting such slldinmovement of the shoe in one direction and insuring alinement of theapertures 1n the lugs thereof with the apertures 1n the lugs on thehead, and a key extending longitudinally through the apertures in thelugs in the head and shoe and connecting said parts.

l. The combination with a brake head having on its forward face aplurality of forwardly extending projections, of an adapter comprising aframe fitted tothe head about certain of said projections and providinga plurality of sockets that are open at one side of the head and closedat the opposite side, a shoe having on its rear face a plurality of lugsadapted to be moved to and from a position within said sockets by alateral sliding movement, and a common means engaging the projections onthe head, the adapter and the lugs on the shoe.

5. The combination with a brake head having on its forward face aplurality of forwardly extending projections, the proj ections at theends of the head being slotted or formed with a key way and theintermediate projections having apertures therewill aline with the keyways and apertures of the head and the apertures in the cross bars ofthe adapter by a lateral sliding movement, and a key adapted to extendthrough said key ways and alined apertures to connect the several parts.

6. The combination with a brake head, of an adapter detachably connectedto said head and provided on the face thereof with a plurality ofsockets open at one side only of the head, a shoe having on its rear aplurality of lugs adapted to be positioned within or withdrawn from saidsockets by a laterally sliding movement, and means connectin said shoeto the head.

The combination with a. brake head, of an adapter detachably connectedto said head and provided on the face thereof with a plurality ofsockets open at one side only of the head, a shoe having on its rear aplurality of lugs adapted to be positioned within or withdrawn from saidsockets by a laterally sliding movement, and a locking key extendinglongitudinally of the shoe and the face of the head and directlyengaging the head, adapter and shoe.

8. The combination with a brake head including a plurality of lugsprojecting forwardly from its face, the end lugs being slotted and theintermediate lugs provided with apertures in alinement with said slots,an adapter comprising a frame surrounding said intermediate lugs on thehead and abutments positioned within the spaces between saidintermediate and end lugs of the head adjacent one side of the head, ashoe having on its rear a plurality of lugs adapted to be inserted in orwithdrawn from the sockets formed between the lugs in the head by alateral sliding movement, which movement is limited in one direction bysaid abutments, and means for holding the shoe in position on the head.

9. A frame adapted to be appliedkto athe transverse members, wherebvwhen the frame is applied to a brake head there will be provided aplurality of sockets, one of which opens through the face and one sideonly of the head, so that a shoe may be applied to or Withdrawn from thebrake'head bv a lateral sliding movement, which movement will be limitedin one direction by the wall of one of said sockets formed'by one of thesides of said frame.

10. A frame adapted to be fitted about the intermediate lugs of abrakeheadand including side members only one of which is 1 adaptedtoproject as far as the face of the head, between saidintermediate lugsand the end plugs of the head, whereby it is adapted to provide socketsto receive lugs ona shoe and permit said shoe tobe applied to orwithdrawn from the head by a lateral sliding movement, the portions ofsaid frame projeotingbeyond the surface of the head between theintermediate and end lugsof the head constituting abutments to limitlateral movement of the shoe in one direction.

In testimony whereof I have hereunto set CHARLES V. ROTE.

-my hand.

